Search for dissertations about: "adjustable speed"

Showing result 1 - 5 of 17 swedish dissertations containing the words adjustable speed.

2. 1. Superconducting High Speed Passive Interconnects

   Author : Raihan Rafique; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rapid Single Flux Quantum RSFQ ; Superconducting Microstrip Line SMSL ; RSFQ Driver.; Interconnect Discontinuities; Multi-Chip-Module MCM ;

   Abstract : Superconducting digital RSFQ technology offers unique digital processing solutions for the telecommunication that allows more than three times increasing capacity of the 3G networks, makes telecommunication receivers reconfigurable and adjustable for different services, and significantly enhances security level of the data transfer over the fibers.Key features of RSFQ technology are high speed, low power and high integration density. READ MORE

4. 2. Low Emission Concepts for Diesel Engines

   Author : Arjan Helmantel; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; post injection; adjustable valve timing; two-colour pyrometry; Homogeneous Charge Compression Ignition; emissions; piezo injector; swirl; combustion; Diesel; HCCI; endoscope;

   Abstract : In the recent past, the Diesel engine has been improved considerably in the areas of performance, fuel efficiency and exhaust emissions. In Europe, these improvements have resulted in a strong increase in the sales of passenger cars equipped with a Diesel engine. READ MORE

5. 3. Belt Driven Alternator and Starter with a Series Magnetized Synchronous Machine Drive

   Author : Tomas Bergh; Industriell elektroteknik och automation; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : Electric Hybrid Vehicles, EHV, are under development to provide lower fuel consumption levels and minimize the environmental pollution compared to pure Internal Combustion Engine, ICE, driven vehicles. The EHV is more complex and thus carry many more extra parts than the pure ICE based vehicle. READ MORE

6. 4. Ontology-based Analysis and Scalable Model Checking of Embedded Systems Models

   Author : Nesredin Mahmud; Cristina Seceleanu; Oscar Ljungkrantz; Guillermo Rodriguez-Navas; Riccardo Scandariato; Mälardalens högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; requirements specification; embedded systems; ontology; formal methods; simulink; sat; domain specific language; requirements boilerplates; Computer Science; datavetenskap;

   Abstract : Currently, there is lack of effective and scalable methods to specify and ana-lyze requirements specifications, and verify the behavioral models of embed-ded systems. Most embedded systems requirements are expressed in naturallanguage which is flexible and intuitive but frequently ambiguous, vague andincomprehensive. READ MORE

7. 5. Synchronous Machines with High-Frequency Brushless Excitation for Vehicle Applications

   Author : Junfei Tang; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrically Excited Synchronous Machines; Machine Modeling; Brushless Excitation; Machine Control; Machine Design; Electric Vehicles;

   Abstract : Electrically excited synchronous machines (EESM) are becoming an alternative to permanent magnet synchronous machines (PMSM) in electric vehicle (EV) applications. This mainly attributes to the zero usage of rare-earth material as well as the capabilities of high starting torque and good field weakening provided by EESM. READ MORE